Conduction, Convection, Radiation

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What is conduction?

Back

Conduction is the transfer of heat through a solid material without the movement of the material itself. It occurs when two objects at different temperatures are in direct contact.

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NGSS.MS-PS3-3

NGSS.MS-PS3-4

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What is convection?

Back

Convection is the transfer of heat by the movement of fluids (liquids or gases). Warm fluid rises while cooler fluid sinks, creating a current.

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NGSS.MS-ESS2-6

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What is radiation?

Back

Radiation is the transfer of heat in the form of electromagnetic waves. It does not require a medium and can occur in a vacuum.

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NGSS.HS-PS4-1

NGSS.HS-PS4-3

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How does the sun cause sunburn?

Back

The sun causes sunburn through radiation, which is the transfer of heat and energy from the sun to the skin.

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Why does warm air rise in a room?

Back

Warm air rises in a room due to convection, as it is less dense than cooler air.

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NGSS.MS-PS1-4

Front

What happens when you touch a hot stove?

Back

When you touch a hot stove, heat is transferred to your skin through conduction.

Front

What is an example of convection in nature?

Back

An example of convection in nature is the formation of wind, where warm air rises and cool air moves in to replace it.

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NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

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How does a campfire warm you?

Back

A campfire warms you through radiation, as the heat travels through the air to reach you.

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What is the role of convection in cooking?

Back

Convection helps cook food evenly in an oven by circulating hot air around the food.

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NGSS.MS-PS3-4

Front

What is an example of radiation in everyday life?

Back

An example of radiation in everyday life is feeling warmth from the sun or a heater without being in direct contact.